Chaeles littlefield



(No Model.)

C. LITTLEFIELD.

ROPE GLAMP.

No. 278,155. Patented May 22,1888.

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WITNEssBs:

I ATTORNEYS.

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UNITED STATES PATENT OFFICE.

CHARLES LITTLEFIELD, OF VINALHAVEN, MAINE.

ROPE-CLAMP.

SPECIFICATION forming part of Letters Patent No. 278,155,'dated May 22,1883. Application led March 22, 1883. (No model.)

To all whom it may concern:

Be it known that I, GHARLEs LITTLEEIELD, of Vinalhaven, Knox county,Maine, have invented a new and Improved Rope Holder or Clamp, ofwhichthe following is a full, clear, and exactvdescription.

The object of my invention is to provide a cheap, efficient, andeasily-applied andselfadjusting rope holder or clamp adapted for holdingand splicing hernpen or wire ropes without cutting, marring, orotherwise injuring the rope; and to this end my invention consists,principally, of two jaws or clampplates connected by links and pins, oneof the pins passing through -andworking in an inclined slot formed uponthe back ot' one of the jaws or plates.

The invention also consists in making one of the link-plates in the formof a hook, and adapting one of the pins to receive the hook, wherebywhen the plate is unhooked the holder is adapted to be placed sidewiseupon the rope. v

The invention also consists informing diagonal or spiral rib or ribsupon the inner concaved face of one of the plates or jaws to correspondWith the twists of the rope, whereby all slipping of the holder upon therope or the rope in the holder is prevented.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in

which similar letters of reference indicate corresponding parts in allthe figures.

Figure 1 is a side elevation of my invention as it appears when appliedtothe rope. Fig. 2 is a sectional elevation taken on the line x 9c ofFig. l, and Fig. 3 is a similar view taken on the line y y of Fig. 2.

A and A' represent the clamp-plates or jaws of the device. The plate orjaw A is formed with the' inclined slot B at its back, is provided withthe ring C at one end, and is made slightly concave upon its inner face,as shown at D,`Fig. 2. The plate or jaw A' is slightly concaved, andformed with the diagonalor spiral rib or ribs E upon its inner face, as

shown in Fig. 3, and is attached to the plate or jaw A by means of theside links or plates,

F F', and bolts G G', the latter of which passes through the inclinedslot B, as shown in Figs. l and 2. The plate F' is made in the form of ahook, as shown in Fig. 1, so that it may beV easily attached to anddetached from the bolt G', and to facilitate the attachment of the hookto and its detachment from the bolt G', Iform this bolt with the head H,over which the hook passes, and with the outer head or ange, J, whichconfines the hook and prevents it from moving laterally off from thebolt.

In applying the device to a rope, the bolt G is rst moved down to thelowest end of the inclined slot B, and the rope passed either endwiseor, by unhookin'g the plate F', sidewise between the jaws or plates AA', with the ring end of the device away from the direction ot' thestrain that will be put upon the rope. The bolt G' is then moved up inthe slot B as far as it will go, which will cause the plates A A' to bedrawn snugly upon the rope. Now, upon strain being applied to thedevice'at the ring C, in the direction of the arrow, or to the rope,away from the arrow,

the action of the inclined slot B upon the bolts- A land side plateswill cause the jaws AA' to grasp the rope with a firmness increasingwith the strain, so that whatever the strain the device will securelyhold the rope, and the clampplates being of considerable length and madeto fit the rope, they will not cut or mar the rope, and the jaw A" beingformed with rib or ribs E E, which will engage with the coils of therope, there is no danger of the rope slipping in the device. Besides,thedevice is cheap, durable, and easily attached to and detached fromthe rope, and is adapted for a variety of uses.

Havingthus described my invention, I claim as new and desire to'secureby LettersPatentl. The rope-holder herein shown and described,consisting of the connected jaws or plates A A', the jaw A being formedwith the inclined stop B, adapted to cause the jaws to grasp the rope,as set forth.

2. The jaw A', formed with the diagonal rib or ribs E, in combinationwith the jaw A, inclined slot B, side plates, F F', and bolts G G',

4as and for the purposes set forth.

3. The combination, with the jaws A A', plate F, bolts G G', andinclined slot B, of the hooked plate F', adapted to fit upon the double-IOO headed bolt G', substantially as and for the i J osEPH J. LANE.

